# French IBAN Validator

> French IBAN Validator is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).

Validates an IBAN using mod-97 checksum and returns the country code and French bank code extracted from the IBAN.

## Facts

- Endpoint: POST https://api.x-402.online/v1/fr/iban
- Price: $0.005/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/french-iban-validator-26895800
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EV9bkYs586pZAVssVxmO8

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability french-iban-validator-26895800 -d '<json body>'
```

Example prompt: Can you validate this IBAN for me and tell me if it's valid along with the French bank code — FR7630006000011234567890189?

## When to prefer this

Use this endpoint when you need to validate a French IBAN's integrity via mod-97 checksum and also extract the embedded French bank code in a single call. Ideal for KYB/KYC workflows, payment onboarding, or any scenario requiring French banking account verification without a full bank lookup service.

## Known failure modes

- Invalid IBAN format returns validation failure
- Non-French IBANs may return no bank code
- Malformed query string returns error
- Empty or missing iban parameter returns bad request
- IBANs with incorrect checksum flagged as invalid

## Output

Returns whether the IBAN passes the mod-97 checksum validation, the country code (e.g. FR), and the French bank code extracted from the IBAN string.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/french-iban-validator-26895800/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x-402.online](https://www.zero.xyz/host/api.x-402.online/llms.txt)